I can see BM becoming a part of Star's new plan to integrate better with 'low-cost' airlines providing connectivity into the main Star hubs.
Press - Star Alliance - Star Alliance
It suggests *G benefits recognition and through ticketing/baggage handling. No word on being able to include the flights on *A redemptions though. It'd be great if I could include BM in redemptions, so I didn't have to keep going to LHR.